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mysqlhotcopy(1) -- Linux man page
NAME
mysqlhotcopy - a database backup program
SYNOPSIS
-
mysqlhotcopy arguments
DESCRIPTION
mysqlhotcopy
is a Perl script that was originally written and contributed by Tim Bunce. It uses
LOCK TABLES,
FLUSH TABLES, and
cp
or
scp
to make a database backup quickly. It is the fastest way to make a backup of the database or single tables, but it can be run only on the same machine where the database directories are located.
mysqlhotcopy
works only for backing up
MyISAM
and
ISAM
tables, and
ARCHIVE
tables as of MySQL 4.1.
mysqlhotcopy
runs on Unix, and as of MySQL 4.0.18 also on NetWare.
shell> mysqlhotcopy db_name [/path/to/new_directory]
shell> mysqlhotcopy db_name_1 ... db_name_n /path/to/new_directory
Back up tables in the given database that match a regular expression:
shell> mysqlhotcopy db_name./regex/
The regular expression for the table name can be negated by prefixing it with a tilde (oq~cq):
shell> mysqlhotcopy db_name./~regex/
mysqlhotcopy
supports the following options:
- *
-
--help,
-?
Display a help message and exit.
- *
-
--addtodest
Do not rename target directory (if it exists); merely add files to it. This option was added in MySQL 4.0.13.
- *
-
--allowold
Do not abort if a target exists; rename it by adding an
_old
suffix.
- *
-
--checkpoint=db_name.tbl_name
Insert checkpoint entries into the specified database
db_name
and table
tbl_name.
- *
-
--chroot=path
Base directory of the
chroot
jail in which
mysqld
operates. The
path
value should match that of the
--chroot
option given to
mysqld. This option was added in MySQL 4.0.19.
- *
-
--debug
Enable debug output.
- *
-
--dryrun,
-n
Report actions without performing them.
- *
-
--flushlog
Flush logs after all tables are locked.
- *
-
--host=host_name,
-h host_name
The hostname of the local host to use for making a TCP/IP connection to the local server. By default, the connection is made to
localhost
using a Unix socket file.
- *
-
--keepold
Do not delete previous (renamed) target when done.
- *
-
--method=command
The method for copying files (cp
or
scp).
- *
-
--noindices
Do not include full index files in the backup. This makes the backup smaller and faster. The indexes for reloaded tables can be reconstructed later with
myisamchk -rq
for
MyISAM
tables or
isamchk -rq
for
ISAM
tables.
- *
-
--password=password,
-ppassword
The password to use when connecting to the server. Note that the password value is not optional for this option, unlike for other MySQL programs. You can use an option file to avoid giving the password on the command line.
Specifying a password on the command line should be considered insecure. See
Section 7.6, lqKeeping Your Password Securerq.
- *
-
--port=port_num,
-P port_num
The TCP/IP port number to use when connecting to the local server.
- *
-
--quiet,
-q
Be silent except for errors.
- *
-
--record_log_pos=db_name.tbl_name
Record master and slave status in the specified database
db_name
and table
tbl_name.
- *
-
--regexp=expr
Copy all databases with names that match the given regular expression.
- *
-
--resetmaster
Reset the binary log after locking all the tables.
- *
-
--resetslave
Reset the
master.info
file after locking all the tables.
- *
-
--socket=path,
-S path
The Unix socket file to use for the connection.
- *
-
--suffix=str
The suffix for names of copied databases.
- *
-
--tmpdir=path
The temporary directory. The default is
/tmp.
- *
-
--user=user_name,
-u user_name
The MySQL username to use when connecting to the server.
mysqlhotcopy
reads the
[client]
and
[mysqlhotcopy]
option groups from option files.
To execute
mysqlhotcopy, you must have access to the files for the tables that you are backing up, the
SELECT
privilege for those tables, the
RELOAD
privilege (to be able to execute
FLUSH TABLES), and the
LOCK TABLES
privilege (to be able to lock the tables).
Use
perldoc
for additional
mysqlhotcopy
documentation, including information about the structure of the tables needed for the
--checkpoint
and
--record_log_pos
options:
shell> perldoc mysqlhotcopy
SEE ALSO
isamchk(1),
isamlog(1),
msql2mysql(1),
myisam_ftdump(1),
myisamchk(1),
myisamlog(1),
myisampack(1),
mysql(1),
mysql.server(1),
mysql_config(1),
mysql_fix_privilege_tables(1),
mysql_zap(1),
mysqlaccess(1),
mysqladmin(1),
mysqlbinlog(1),
mysqlcheck(1),
mysqld(1),
mysqld_multi(1),
mysqld_safe(1),
mysqldump(1),
mysqlimport(1),
mysqlshow(1),
pack_isam(1),
perror(1),
replace(1),
safe_mysqld(1)
For more information, please refer to the MySQL Reference Manual,
which may already be installed locally and which is also available
online at http://dev.mysql.com/doc/.
AUTHOR
MySQL AB (http://www.mysql.com/).
This software comes with no warranty.
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